I've written about STORServer before. They are an IBM Ready-for-Tivoli Software Certified Business Partner, that offers a range of backup and recovery appliances that leverage IBM Tivoli Storage Manager (TSM) software. The sweet value add from STORServer, besides putting all the hardware and software together for you, is the nice, simple user interface that they've built in front of TSM.

Earlier this year, STORServer announced that they would offer the STORServer Console (SSC) as standalone software, enabling customers or other integrators to build their own TSM based backup appliances. SSC allows Tivoli Storage Manager users to operate their environment
entirely from an easy-to-use interface, while maintaining the latest
robust, feature-rich capabilities of TSM. The software gives nearly any
administrator or operator the ability to manage and monitor their TSM
environment with simplicity.

STORServer is now announcing the availability of STORServer Console v3.0 (SSC), which supports client node replication, providing the ability to incrementally replicate a backup client node’s data from one TSM server (source) to a remote TSM server (target) for disaster recovery. In addition, numerous enhancements have been made to SSC v3.0 reports, including: